diff options
| -rw-r--r-- | include/linux/crc64_ecma.h | 56 | ||||
| -rw-r--r-- | lib/Kconfig | 7 | ||||
| -rw-r--r-- | lib/Makefile | 1 | ||||
| -rw-r--r-- | lib/crc64_ecma.c | 341 |
4 files changed, 405 insertions, 0 deletions
diff --git a/include/linux/crc64_ecma.h b/include/linux/crc64_ecma.h new file mode 100644 index 000000000000..bba7a4d692b3 --- /dev/null +++ b/include/linux/crc64_ecma.h @@ -0,0 +1,56 @@ +/* + * Copyright 2013 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __CRC64_ECMA_H_ +#define __CRC64_ECMA_H_ + +#include <linux/types.h> + + +#define CRC64_DEFAULT_INITVAL 0xFFFFFFFFFFFFFFFFULL + + +/* + * crc64_ecma_seed - Initializes the CRC64 ECMA seed. + */ +u64 crc64_ecma_seed(void); + +/* + * crc64_ecma - Computes the 64 bit ECMA CRC. + * + * @pdata: pointer to the data to compute checksum for. + * @nbytes: number of bytes in data buffer. + * @seed: CRC seed. + */ +u64 crc64_ecma(u8 const *pdata, u32 nbytes, u64 seed); + +#endif /* __CRC64_ECMA_H_ */ diff --git a/lib/Kconfig b/lib/Kconfig index 991c98bc4a3f..d2cbd6f749f5 100644 --- a/lib/Kconfig +++ b/lib/Kconfig @@ -177,6 +177,13 @@ config CRC8 when they need to do cyclic redundancy check according CRC8 algorithm. Module will be called crc8. +config CRC64_ECMA + tristate "CRC64 ECMA function" + help + This option provides CRC64 ECMA function. Drivers may select this + when they need to do cyclic redundancy check according to the CRC64 + ECMA algorithm. + config AUDIT_GENERIC bool depends on AUDIT && !AUDIT_ARCH diff --git a/lib/Makefile b/lib/Makefile index 98ec3b861062..d5ea34e07701 100644 --- a/lib/Makefile +++ b/lib/Makefile @@ -68,6 +68,7 @@ obj-$(CONFIG_CRC32) += crc32.o obj-$(CONFIG_CRC7) += crc7.o obj-$(CONFIG_LIBCRC32C) += libcrc32c.o obj-$(CONFIG_CRC8) += crc8.o +obj-$(CONFIG_CRC64_ECMA) += crc64_ecma.o obj-$(CONFIG_GENERIC_ALLOCATOR) += genalloc.o obj-$(CONFIG_ZLIB_INFLATE) += zlib_inflate/ diff --git a/lib/crc64_ecma.c b/lib/crc64_ecma.c new file mode 100644 index 000000000000..41629ea5a60c --- /dev/null +++ b/lib/crc64_ecma.c @@ -0,0 +1,341 @@ +/* + * Copyright 2013 Freescale Semiconductor Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * * Neither the name of Freescale Semiconductor nor the + * names of its contributors may be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * + * ALTERNATIVELY, this software may be distributed under the terms of the + * GNU General Public License ("GPL") as published by the Free Software + * Foundation, either version 2 of that License or (at your option) any + * later version. + * + * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <linux/module.h> +#include <linux/crc64_ecma.h> + + +#define CRC64_BYTE_MASK 0xFF +#define CRC64_TABLE_SIZE 256 + + +struct crc64_table { + u64 seed; + u64 table[CRC64_TABLE_SIZE]; +}; + + +static struct crc64_table CRC64_ECMA_182 = { + CRC64_DEFAULT_INITVAL, + { + 0x0000000000000000ULL, + 0xb32e4cbe03a75f6fULL, + 0xf4843657a840a05bULL, + 0x47aa7ae9abe7ff34ULL, + 0x7bd0c384ff8f5e33ULL, + 0xc8fe8f3afc28015cULL, + 0x8f54f5d357cffe68ULL, + 0x3c7ab96d5468a107ULL, + 0xf7a18709ff1ebc66ULL, + 0x448fcbb7fcb9e309ULL, + 0x0325b15e575e1c3dULL, + 0xb00bfde054f94352ULL, + 0x8c71448d0091e255ULL, + 0x3f5f08330336bd3aULL, + 0x78f572daa8d1420eULL, + 0xcbdb3e64ab761d61ULL, + 0x7d9ba13851336649ULL, + 0xceb5ed8652943926ULL, + 0x891f976ff973c612ULL, + 0x3a31dbd1fad4997dULL, + 0x064b62bcaebc387aULL, + 0xb5652e02ad1b6715ULL, + 0xf2cf54eb06fc9821ULL, + 0x41e11855055bc74eULL, + 0x8a3a2631ae2dda2fULL, + 0x39146a8fad8a8540ULL, + 0x7ebe1066066d7a74ULL, + 0xcd905cd805ca251bULL, + 0xf1eae5b551a2841cULL, + 0x42c4a90b5205db73ULL, + 0x056ed3e2f9e22447ULL, + 0xb6409f5cfa457b28ULL, + 0xfb374270a266cc92ULL, + 0x48190ecea1c193fdULL, + 0x0fb374270a266cc9ULL, + 0xbc9d3899098133a6ULL, + 0x80e781f45de992a1ULL, + 0x33c9cd4a5e4ecdceULL, + 0x7463b7a3f5a932faULL, + 0xc74dfb1df60e6d95ULL, + 0x0c96c5795d7870f4ULL, + 0xbfb889c75edf2f9bULL, + 0xf812f32ef538d0afULL, + 0x4b3cbf90f69f8fc0ULL, + 0x774606fda2f72ec7ULL, + 0xc4684a43a15071a8ULL, + 0x83c230aa0ab78e9cULL, + 0x30ec7c140910d1f3ULL, + 0x86ace348f355aadbULL, + 0x3582aff6f0f2f5b4ULL, + 0x7228d51f5b150a80ULL, + 0xc10699a158b255efULL, + 0xfd7c20cc0cdaf4e8ULL, + 0x4e526c720f7dab87ULL, + 0x09f8169ba49a54b3ULL, + 0xbad65a25a73d0bdcULL, + 0x710d64410c4b16bdULL, + 0xc22328ff0fec49d2ULL, + 0x85895216a40bb6e6ULL, + 0x36a71ea8a7ace989ULL, + 0x0adda7c5f3c4488eULL, + 0xb9f3eb7bf06317e1ULL, + 0xfe5991925b84e8d5ULL, + 0x4d77dd2c5823b7baULL, + 0x64b62bcaebc387a1ULL, + 0xd7986774e864d8ceULL, + 0x90321d9d438327faULL, + 0x231c512340247895ULL, + 0x1f66e84e144cd992ULL, + 0xac48a4f017eb86fdULL, + 0xebe2de19bc0c79c9ULL, + 0x58cc92a7bfab26a6ULL, + 0x9317acc314dd3bc7ULL, + 0x2039e07d177a64a8ULL, + 0x67939a94bc9d9b9cULL, + 0xd4bdd62abf3ac4f3ULL, + 0xe8c76f47eb5265f4ULL, + 0x5be923f9e8f53a9bULL, + 0x1c4359104312c5afULL, + 0xaf6d15ae40b59ac0ULL, + 0x192d8af2baf0e1e8ULL, + 0xaa03c64cb957be87ULL, + 0xeda9bca512b041b3ULL, + 0x5e87f01b11171edcULL, + 0x62fd4976457fbfdbULL, + 0xd1d305c846d8e0b4ULL, + 0x96797f21ed3f1f80ULL, + 0x2557339fee9840efULL, + 0xee8c0dfb45ee5d8eULL, + 0x5da24145464902e1ULL, + 0x1a083bacedaefdd5ULL, + 0xa9267712ee09a2baULL, + 0x955cce7fba6103bdULL, + 0x267282c1b9c65cd2ULL, + 0x61d8f8281221a3e6ULL, + 0xd2f6b4961186fc89ULL, + 0x9f8169ba49a54b33ULL, + 0x2caf25044a02145cULL, + 0x6b055fede1e5eb68ULL, + 0xd82b1353e242b407ULL, + 0xe451aa3eb62a1500ULL, + 0x577fe680b58d4a6fULL, + 0x10d59c691e6ab55bULL, + 0xa3fbd0d71dcdea34ULL, + 0x6820eeb3b6bbf755ULL, + 0xdb0ea20db51ca83aULL, + 0x9ca4d8e41efb570eULL, + 0x2f8a945a1d5c0861ULL, + 0x13f02d374934a966ULL, + 0xa0de61894a93f609ULL, + 0xe7741b60e174093dULL, + 0x545a57dee2d35652ULL, + 0xe21ac88218962d7aULL, + 0x5134843c1b317215ULL, + 0x169efed5b0d68d21ULL, + 0xa5b0b26bb371d24eULL, + 0x99ca0b06e7197349ULL, + 0x2ae447b8e4be2c26ULL, + 0x6d4e3d514f59d312ULL, + 0xde6071ef4cfe8c7dULL, + 0x15bb4f8be788911cULL, + 0xa6950335e42fce73ULL, + 0xe13f79dc4fc83147ULL, + 0x521135624c6f6e28ULL, + 0x6e6b8c0f1807cf2fULL, + 0xdd45c0b11ba09040ULL, + 0x9aefba58b0476f74ULL, + 0x29c1f6e6b3e0301bULL, + 0xc96c5795d7870f42ULL, + 0x7a421b2bd420502dULL, + 0x3de861c27fc7af19ULL, + 0x8ec62d7c7c60f076ULL, + 0xb2bc941128085171ULL, + 0x0192d8af2baf0e1eULL, + 0x4638a2468048f12aULL, + 0xf516eef883efae45ULL, + 0x3ecdd09c2899b324ULL, + 0x8de39c222b3eec4bULL, + 0xca49e6cb80d9137fULL, + 0x7967aa75837e4c10ULL, + 0x451d1318d716ed17ULL, + 0xf6335fa6d4b1b278ULL, + 0xb199254f7f564d4cULL, + 0x02b769f17cf11223ULL, + 0xb4f7f6ad86b4690bULL, + 0x07d9ba1385133664ULL, + 0x4073c0fa2ef4c950ULL, + 0xf35d8c442d53963fULL, + 0xcf273529793b3738ULL, + 0x7c0979977a9c6857ULL, + 0x3ba3037ed17b9763ULL, + 0x888d4fc0d2dcc80cULL, + 0x435671a479aad56dULL, + 0xf0783d1a7a0d8a02ULL, + 0xb7d247f3d1ea7536ULL, + 0x04fc0b4dd24d2a59ULL, + 0x3886b22086258b5eULL, + 0x8ba8fe9e8582d431ULL, + 0xcc0284772e652b05ULL, + 0x7f2cc8c92dc2746aULL, + 0x325b15e575e1c3d0ULL, + 0x8175595b76469cbfULL, + 0xc6df23b2dda1638bULL, + 0x75f16f0cde063ce4ULL, + 0x498bd6618a6e9de3ULL, + 0xfaa59adf89c9c28cULL, + 0xbd0fe036222e3db8ULL, + 0x0e21ac88218962d7ULL, + 0xc5fa92ec8aff7fb6ULL, + 0x76d4de52895820d9ULL, + 0x317ea4bb22bfdfedULL, + 0x8250e80521188082ULL, + 0xbe2a516875702185ULL, + 0x0d041dd676d77eeaULL, + 0x4aae673fdd3081deULL, + 0xf9802b81de97deb1ULL, + 0x4fc0b4dd24d2a599ULL, + 0xfceef8632775faf6ULL, + 0xbb44828a8c9205c2ULL, + 0x086ace348f355aadULL, + 0x34107759db5dfbaaULL, + 0x873e3be7d8faa4c5ULL, + 0xc094410e731d5bf1ULL, + 0x73ba0db070ba049eULL, + 0xb86133d4dbcc19ffULL, + 0x0b4f7f6ad86b4690ULL, + 0x4ce50583738cb9a4ULL, + 0xffcb493d702be6cbULL, + 0xc3b1f050244347ccULL, + 0x709fbcee27e418a3ULL, + 0x3735c6078c03e797ULL, + 0x841b8ab98fa4b8f8ULL, + 0xadda7c5f3c4488e3ULL, + 0x1ef430e13fe3d78cULL, + 0x595e4a08940428b8ULL, + 0xea7006b697a377d7ULL, + 0xd60abfdbc3cbd6d0ULL, + 0x6524f365c06c89bfULL, + 0x228e898c6b8b768bULL, + 0x91a0c532682c29e4ULL, + 0x5a7bfb56c35a3485ULL, + 0xe955b7e8c0fd6beaULL, + 0xaeffcd016b1a94deULL, + 0x1dd181bf68bdcbb1ULL, + 0x21ab38d23cd56ab6ULL, + 0x9285746c3f7235d9ULL, + 0xd52f0e859495caedULL, + 0x6601423b97329582ULL, + 0xd041dd676d77eeaaULL, + 0x636f91d96ed0b1c5ULL, + 0x24c5eb30c5374ef1ULL, + 0x97eba78ec690119eULL, + 0xab911ee392f8b099ULL, + 0x18bf525d915feff6ULL, + 0x5f1528b43ab810c2ULL, + 0xec3b640a391f4fadULL, + 0x27e05a6e926952ccULL, + 0x94ce16d091ce0da3ULL, + 0xd3646c393a29f297ULL, + 0x604a2087398eadf8ULL, + 0x5c3099ea6de60cffULL, + 0xef1ed5546e415390ULL, + 0xa8b4afbdc5a6aca4ULL, + 0x1b9ae303c601f3cbULL, + 0x56ed3e2f9e224471ULL, + 0xe5c372919d851b1eULL, + 0xa26908783662e42aULL, + 0x114744c635c5bb45ULL, + 0x2d3dfdab61ad1a42ULL, + 0x9e13b115620a452dULL, + 0xd9b9cbfcc9edba19ULL, + 0x6a978742ca4ae576ULL, + 0xa14cb926613cf817ULL, + 0x1262f598629ba778ULL, + 0x55c88f71c97c584cULL, + 0xe6e6c3cfcadb0723ULL, + 0xda9c7aa29eb3a624ULL, + 0x69b2361c9d14f94bULL, + 0x2e184cf536f3067fULL, + 0x9d36004b35545910ULL, + 0x2b769f17cf112238ULL, + 0x9858d3a9ccb67d57ULL, + 0xdff2a94067518263ULL, + 0x6cdce5fe64f6dd0cULL, + 0x50a65c93309e7c0bULL, + 0xe388102d33392364ULL, + 0xa4226ac498dedc50ULL, + 0x170c267a9b79833fULL, + 0xdcd7181e300f9e5eULL, + 0x6ff954a033a8c131ULL, + 0x28532e49984f3e05ULL, + 0x9b7d62f79be8616aULL, + 0xa707db9acf80c06dULL, + 0x14299724cc279f02ULL, + 0x5383edcd67c06036ULL, + 0xe0ada17364673f59ULL + } +}; + + +/* + * crc64_ecma_seed - Initializes the CRC64 ECMA seed. + */ +u64 crc64_ecma_seed(void) +{ + return CRC64_ECMA_182.seed; +} +EXPORT_SYMBOL(crc64_ecma_seed); + +/* + * crc64_ecma - Computes the 64 bit ECMA CRC. + * + * pdata: pointer to the data to compute checksum for. + * nbytes: number of bytes in data buffer. + * seed: CRC seed. + */ +u64 crc64_ecma(u8 const *pdata, u32 nbytes, u64 seed) +{ + unsigned int i; + u64 crc = seed; + + for (i = 0; i < nbytes; i++) + crc = CRC64_ECMA_182.table[(crc ^ pdata[i]) & CRC64_BYTE_MASK] ^ + (crc >> 8); + + return crc; +} +EXPORT_SYMBOL(crc64_ecma); + +MODULE_DESCRIPTION("CRC64 ECMA function"); +MODULE_AUTHOR("Freescale Semiconductor Inc."); +MODULE_LICENSE("GPL"); |